The RFM69Pi expansion board enables a Raspberry Pi to receive and send data via wireless from other OpenEnergyMonitor modules (e.g emonTx V3, emonTH etc .) via RFM69CW or RFM12B (backwards compatiable) (433/868 Mhz) .
This unit does not have an RF module attached
Communicates with the Raspberry Pi via internal UART /dev/ttyAMA0 @ 38400 baud
RFM69Pi Technical Documentation wiki: http://wiki.openenergymonitor.org/index.php?title=RFM69Pi_V3
OpenEnergyMonitor Main Getting Started Guide:http://openenergymonitor.org/emon/guide
open-source Arduino firmware: https://github.com/openenergymonitor/RFM2Pi
open-source hardware: https://github.com/openenergymonitor/Hardware/tree/master/RFM2Pi
RFM69CW Overview: http://openenergymonitor.org/emon/buildingblocks/RFM69cw